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126:
The A.74 marked a transition for Fiat from liquid-cooled inline engines, to large air-cooled radial engines. Fiat had made a number of smaller radial air engines over the years but the A.74 marked a major increase in power and size. The A.74 family was widely produced and spawned a number of
127:
related engines such as the A.76, A.80, and A.82, each successive generation being larger and more powerful than the previous. The entire series grew from 14 cylinders to 18 cylinders with a power output of 870 hp to 1,400 hp.
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was a two-row, fourteen-cylinder, air-cooled radial engine produced in Italy in the 1930s as a powerplant for aircraft. It was used in some of Italy's most important aircraft of World War II.
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338:(858 hp, 640 kW) at 2,520 rpm at sea level (take-off power); 960 cv (947 hp, 706 kW) at 2520 rpm at 3,000 m (Emergency power)
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With reduction gear, fuel injection and supercharger, rated altitude 3,800 m (12,500 ft).
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With reduction gear and supercharger, rated altitude 4,200 m (13,800 ft).
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With reduction gear and supercharger, rated altitude 3,800 m (12,500 ft).
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With reduction gear and supercharger, rated altitude 1,800 m (5,900 ft).
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One intake and one sodium-cooled exhaust valve per cylinder
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739:Aircraft air-cooled radial piston engines
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424:Pratt & Whitney R-1830 Twin Wasp
36:Preserved Fiat A.74 R.I.C.38 engine
16:1930s Italian piston aircraft engine
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749:1930s aircraft piston engines
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235:14-cylinder air-cooled radial
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446:List of aircraft engines
262:31.25 L (1,906.9 cu in)
227:General characteristics
356:1.2 kW/kg (0.73 hp/lb)
122:Design and development
744:Fiat aircraft engines
352:Power-to-weight ratio
214:Specifications (A.74)
366:Related development
274:1,195 mm (47.05 in)
95:Macchi C.200 Saetta
478:A.74 engine manual
463:2007-03-14 at the
378:Comparable engines
268:1,044mm (41.13 in)
222:A.74 engine manual
82:Major applications
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404:Mitsubishi Kinsei
343:Compression ratio
283:590 kg (1,246 lb)
253:145 mm (5.709 in)
244:140 mm (5.512 in)
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91:Fiat G.50 Freccia
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519:aircraft engines
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394:Bristol Hercules
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87:Fiat CR.42 Falco
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57:Kingdom of Italy
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465:Wayback Machine
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429:Shvetsov ASh-82
399:Gnome-Rhône 14N
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319:Cooling system:
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440:Related lists
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434:Tumansky M-88
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419:Piaggio P.XIX
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332:Power output:
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158:A.74 R.I.C.38
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63:Manufacturer
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414:Piaggio P.XI
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303:Fuel system:
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258:Displacement
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208:Macchi C.200
198:Ikarus Orkan
172:Applications
153:A.74 R.C.38S
148:A.74 R.C.38D
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115:
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326:Performance
309:carburettor
178:CANSA FC.20
164:A.74 R.C.42
142:A.74 R.C.38
136:A.74 R.C.18
733:Categories
452:References
321:air-cooled
313:Fuel type:
295:Valvetrain
288:Components
279:Dry weight
203:IMAM Ro.57
193:Fiat RS.14
183:Fiat CR.42
73:First run
372:Fiat A.80
315:87 octane
307:Stromberg
272:Diameter:
219:Data from
188:Fiat G.50
116:Fiat A.74
107:Fiat A.80
461:Archived
361:See also
131:Variants
389:BMW 801
266:Length:
680:SA8/75
249:Stroke
347:6.7:1
233:Type:
76:1937
41:Type
22:A.74
718:4700
713:4301
708:4004
703:4002
685:S.55
675:AS.8
670:AS.6
665:AS.5
660:AS.3
655:AS.2
650:AN.1
645:A.82
640:A.80
635:A.78
630:A.76
625:A.74
620:A.70
615:A.60
610:A.59
605:A.58
600:A.55
595:A.54
590:A.53
585:A.50
580:A.30
575:A.25
570:A.24
565:A.22
560:A.20
555:A.18
550:A.15
545:A.14
540:A.12
535:A.10
516:Fiat
334:870
240:Bore
114:The
67:Fiat
735::
336:cv
305:1
508:e
501:t
494:v
354::
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